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All results from a given calculation for CH2ClCHCl2 (1,1,2-trichloroethane)

using model chemistry: MP2/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-57.423858
Energy at 298.15K-57.427800
HF Energy-56.777962
Nuclear repulsion energy90.624056
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3238 3074 3.25      
2 A 3202 3040 3.55      
3 A 3147 2988 11.12      
4 A 1497 1421 4.97      
5 A 1380 1310 6.65      
6 A 1329 1262 23.93      
7 A 1267 1203 26.48      
8 A 1207 1146 5.83      
9 A 1099 1043 2.67      
10 A 974 925 31.83      
11 A 833 791 21.13      
12 A 786 747 112.56      
13 A 702 667 25.30      
14 A 393 373 6.82      
15 A 341 324 0.99      
16 A 261 248 1.56      
17 A 182 173 4.32      
18 A 114 108 3.67      

Unscaled Zero Point Vibrational Energy (zpe) 10976.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 10421.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/CEP-31G*
ABC
0.11532 0.04822 0.03520

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.671 -0.849 0.401
C2 -0.419 -0.077 -0.367
Cl3 2.308 -0.303 -0.093
H4 0.559 -0.694 1.485
H5 0.588 -1.919 0.155
Cl6 -1.997 -0.863 -0.013
Cl7 -0.452 1.654 0.083
H8 -0.262 -0.131 -1.454

Atom - Atom Distances (Å)
  C1 C2 Cl3 H4 H5 Cl6 Cl7 H8
C11.54051.79521.10041.10092.70002.76112.1967
C21.54052.75012.18322.16331.79821.78831.0996
Cl31.79522.75012.38752.37284.34233.38762.9130
H41.10042.18322.38751.80792.96802.91533.1026
H51.10092.16332.37281.80792.79783.72142.5511
Cl62.70001.79824.34232.96802.79782.95482.3710
Cl72.76111.78833.38762.91533.72142.95482.3627
H82.19671.09962.91303.10262.55112.37102.3627

picture of 1,1,2-trichloroethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 Cl6 107.692 C1 C2 Cl7 111.873
C1 C2 H8 111.524 C2 C1 Cl3 110.835
C2 C1 H4 110.409 C2 C1 H5 108.830
Cl3 C1 H4 108.698 Cl3 C1 H5 107.603
H4 C1 H5 110.427 Cl6 C2 Cl7 110.952
Cl6 C2 H8 107.346 Cl7 C2 H8 107.387
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability